More on CNAME problem
Mark.Andrews at nominum.com
Mark.Andrews at nominum.com
Fri Sep 29 05:45:50 UTC 2000
> In article <200009282312.e8SNCCu20351 at drugs.dv.isc.org>,
> <Mark.Andrews at nominum.com> wrote:
> >> 10:17:45 Request from 199.117.52.11 for CNAME-record for yellowhead.com.
> >> 10:17:45 Sending reply to 199.117.52.11 about CNAME-record for
> >> yellowhead.com.:
> >> 10:17:45 -> Answer: There are no CNAME-Records for yellowhead.com.
> >> 10:17:45 -> Authority: SOA-record for yellowhead.com. =
> >> server1.yellowhead.com. (Serial 2000031302)
>
> > You have been told that this is a perfectly normal query
> > trace from a site without a nameserver that supports negative
> > caching attemting to send email to you.
>
> Er, why would the remote system(s) be explicitly querying the CNAME? I
> would have thought the query would be for the MX, not the CNAME, and the
> CNAME (if present) would be processed as part of the request. Ergo, one
> shouldn't see queries for the CNAME.
>
> -- don
>
>
Because MTA's are dumb in this respect. Sendmail in particular.
Mark
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at nominum.com
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